| NATO Countries | 0 | - | 4.98 | 279,375 |
| EU Countries Quiz | 0 | - | 4.99 | 272,969 |
| Five Countries with Most Christians by Continent | 0 | - | 4.99 | 111,492 |
| Five Biggest Economies by Continent | 0 | - | 4.98 | 194,940 |
| Countries of the World Quiz | 0 | - | 5.00 | 47,337,292 |
| Majority Muslim Countries | 0 | - | 4.98 | 373,276 |
| Countries with the Most Military Troops | 0 | - | 4.95 | 287,509 |
| Countries with Nuclear Weapons | 0 | - | 4.86 | 271,977 |
| Top Five Countries by Religion | 0 | - | 4.93 | 170,800 |
| Countries with the Most Elite Universities | 0 | - | 4.94 | 148,026 |
| Countries with NO Military | 0 | - | 4.97 | 61,982 |
| Countries by Number of Books Published | 0 | - | 4.95 | 72,419 |
| Landlocked Countries | 0 | - | 4.99 | 418,991 |
| All OPEC Countries Ever | 0 | - | 4.77 | 90,824 |
| Countries with the Most Christians | 0 | - | 4.92 | 142,821 |
| Countries with the Most Tanks | 0 | - | 4.91 | 107,155 |
| Biggest Export Partners For Every Country | 0 | - | 4.98 | 50,372 |
| Top Oil Reserve Countries | 0 | - | 4.93 | 74,668 |
| Least Christian Countries with Exceptions | 0 | - | 4.90 | 87,912 |
| Buddhist Countries | 0 | - | 4.96 | 143,966 |
| Countries with the Most Billionaires | 0 | - | 4.90 | 334,858 |
| Countries with the Most Millionaires | 0 | - | 4.86 | 123,214 |
| Countries of Europe Quiz | 0 | - | 5.00 | 3,757,114 |
| Five Top Olympic Medal-Winning Countries by Continent | 0 | - | 4.96 | 143,894 |
| Countries with Most Nobel Prizes by Continent | 0 | - | 4.93 | 59,904 |
| Five Coldest Countries by Continent | 0 | - | 4.97 | 76,503 |
| Sahara Desert Countries | 0 | - | 4.98 | 163,013 |
| Himalayan Countries | 0 | - | 4.94 | 137,446 |
| Andean Countries | 0 | - | 4.95 | 83,949 |
| Countries with the Youngest Median Age | 0 | - | 4.97 | 63,235 |
| Countries in the Southern Hemisphere | 0 | - | 4.99 | 124,677 |
| Coffee Producing Countries | 0 | - | 4.83 | 66,840 |
| Countries with Shrinking Populations | 0 | - | 4.94 | 65,358 |
| Danube Countries | 0 | - | 4.97 | 71,668 |
| Countries With an "Ish" Demonym | 0 | - | 4.97 | 116,559 |
| Countries With an "Ese" Demonym | 0 | - | 4.97 | 86,061 |
| Countries with the Worst Passports | 0 | - | 4.94 | 83,663 |
| Countries with the Most Immigrants | 0 | - | 4.90 | 148,739 |
| European Landlocked Countries | 0 | - | 4.99 | 146,781 |
| Partially Recognized Countries | 0 | - | 4.98 | 106,143 |
| Countries with the Most Species | 0 | - | 4.99 | 102,913 |
| Countries 197 to 205 | 0 | - | 4.89 | 70,275 |
| Tropic of Cancer Countries | 0 | - | 4.97 | 53,433 |
| Tropic of Capricorn Countries | 0 | - | 4.96 | 47,589 |
| Countries that Use the Peso | 0 | - | 4.89 | 59,306 |
| Countries with the Largest Exclusive Economic Zone | 0 | - | 4.90 | 72,994 |
| Countries with a AAA Credit Rating | 0 | - | 4.86 | 57,368 |
| Countries in the Alps | 0 | - | 4.87 | 117,698 |
| Top Five Importing Partners by Country | 0 | - | 4.97 | 95,138 |
| Countries, Capitals, Currencies and Official Languages | 0 | - | 5.00 | 106,373 |
| Biggest Import Partners By Country | 0 | - | 4.99 | 78,425 |
| Southernmost Countries by Continent | 0 | - | 4.98 | 95,992 |
| Northernmost Countries by Continent | 0 | - | 4.98 | 116,102 |
| Countries by Population Growth, 1970–Present | 0 | - | 4.92 | 95,615 |
| Five Biggest Countries by Latitude | 0 | - | 4.97 | 100,290 |
| Five Biggest Countries by Longitude | 0 | - | 4.91 | 53,192 |
| Largest Country by Body of Water | 0 | - | 4.96 | 57,971 |
| Countries with the Most Container Port Traffic | 0 | - | 4.92 | 62,557 |
| Bridge and Tunnel Borders | 0 | - | 4.96 | 53,482 |
| Countries with the Longest Road Networks Quiz | 0 | - | 4.90 | 41,341 |
| Countries that Touch the Prime Meridian or Equator | 0 | - | 4.88 | 103,929 |
| Arctic Ocean Countries | 0 | - | 4.95 | 79,190 |
| Countries with the Most Grassland | 0 | - | 4.94 | 77,210 |
| All Countries by Area : Four at a Time | 0 | - | 5.00 | 118,195 |
| Countries with the Most Climate Zones | 0 | - | 4.96 | 68,066 |
| Countries that Host the Most Refugees | 0 | - | 4.95 | 59,575 |
| Countries of the World by Similar Area in 90 Seconds | 0 | - | 4.95 | 45,533 |
| All Countries of the World by Area with Hints | 0 | - | 4.97 | 242,401 |
| World Countries - Blind Typing | 0 | - | 5.00 | 107,237 |
| Countries in Their Own Alphabet | 0 | - | 4.95 | 48,001 |
| Largest Countries By Category | 0 | - | 4.97 | 157,646 |
| Countries by Countries | 0 | - | 4.96 | 62,844 |
| Country Flags With Only Two Colors | 0 | - | 4.92 | 88,327 |
| Top 50 Countries by Population - In Order | 0 | - | 4.98 | 329,034 |
| Spanish-Speaking Countries | 0 | - | 4.95 | 374,619 |
| Countries with the Most Tourists Quiz | 0 | - | 4.92 | 405,131 |
| Island Countries | 0 | - | 4.99 | 709,777 |
| Biggest Countries by Area | 0 | - | 4.99 | 1,046,092 |
| Northernmost Countries | 0 | - | 4.99 | 360,496 |
| Countries of South America | 0 | - | 5.00 | 922,959 |
| Countries of Oceania | 0 | - | 5.00 | 1,051,103 |
| Countries of Asia Quiz | 0 | - | 5.00 | 1,866,477 |
| "Land" Countries | 0 | - | 4.98 | 335,802 |
| Countries that Start with A | 0 | - | 4.98 | 2,159,128 |
| Countries that Start with B | 0 | - | 4.95 | 2,291,110 |
| Countries that Start with C | 0 | - | 4.96 | 1,819,373 |
| Countries that Start with D | 0 | - | 4.96 | 707,745 |
| Countries that Start with E | 0 | - | 4.95 | 1,374,961 |
| Countries that Start with G | 0 | - | 4.97 | 1,500,636 |
| Countries that Start with H | 0 | - | 4.96 | 603,185 |
| Countries that Start with I | 0 | - | 4.92 | 1,286,273 |
| Countries that Start with J | 0 | - | 4.98 | 601,027 |
| Countries that Start with K | 0 | - | 4.97 | 814,267 |
| Countries that Start with L | 0 | - | 4.98 | 1,089,001 |
| Countries that Start with N | 0 | - | 4.93 | 1,115,948 |
| Countries that Start with P | 0 | - | 4.94 | 1,214,454 |
| Countries that Start with S | 0 | - | 4.98 | 1,752,525 |
| Countries that Start with T | 0 | - | 4.90 | 1,008,555 |
| Countries that Start with U | 0 | - | 4.97 | 903,424 |
| Countries that Start with V | 0 | - | 4.98 | 608,475 |
| Countries that Start with F | 0 | - | 4.83 | 616,369 |
| Countries that Start with M | 0 | - | 4.97 | 1,379,749 |
| Five Most Inland Capital Cities by Continent | 0 | - | 4.90 | 12,585 |
| Countries with the Most Catholics | 0 | - | 4.90 | 109,126 |
| Orthodox Countries | 0 | - | 4.92 | 131,339 |
| Richest Island Countries | 0 | - | 4.84 | 100,315 |
| Countries of the World with an Empty Map | 0 | - | 5.00 | 3,375,794 |
| Monarchies of Europe | 0 | - | 4.90 | 97,976 |
| Monarchies of Asia | 0 | - | 4.97 | 70,991 |
| World Countries by 10 Category Elimination #1 | 0 | - | 4.97 | 122,557 |
| Asian Country Superlatives | 0 | - | 4.84 | 80,784 |
| Countries with the Most Muslims | 0 | - | 4.95 | 160,169 |
| Countries with the Most Exports | 0 | - | 4.96 | 155,128 |
| Top Crude Oil Producing Countries | 0 | - | 4.89 | 189,443 |
| Countries by Oil Consumption | 0 | - | 4.96 | 120,296 |
| Largest Economies in 2050 | 0 | - | 4.90 | 111,289 |
| Richest Countries by Per-Capita GDP | 0 | - | 4.96 | 270,454 |
| Countries With Highest GDP as a Percent of Continent | 0 | - | 4.96 | 104,066 |
| Countries with the Highest GDP per Square Kilometer | 0 | - | 4.89 | 84,378 |
| Five Countries by a Single Word by Continent | 0 | - | 4.91 | 77,949 |
| Most Visited Countries by JetPunkers | 0 | - | 4.85 | 118,178 |
| Countries More Populous Than Their Neighbors | 0 | - | 4.99 | 173,032 |
| Countries with Megacities | 0 | - | 4.99 | 260,206 |
| Countries With More than 50 Million People | 0 | - | 4.99 | 198,908 |
| Countries with the Most Population Growth by Decade | 0 | - | 4.98 | 113,001 |
| Countries With More than 200 Million People | 0 | - | 4.96 | 137,182 |
| Countries Less Populous Than Their Neighbors | 0 | - | 4.96 | 81,009 |
| Countries by Official Language | 0 | - | 4.95 | 194,645 |
| Countries with the Most Speakers of These Languages | 0 | - | 4.91 | 295,546 |
| Countries in their Native Language | 0 | - | 4.99 | 198,192 |
| Independence from Whom | 0 | - | 4.99 | 211,322 |
| Subdivisions by Country | 0 | - | 4.86 | 50,288 |
| Who Controlled These Colonies? | 0 | - | 4.88 | 131,717 |
| Megadiverse Countries | 0 | - | 4.96 | 134,770 |
| Countries With the Most English Speakers | 0 | - | 4.86 | 131,550 |
| Countries Producing the Most Sugarcane | 0 | - | 4.95 | 55,186 |
| Countries with Multiple Big Islands | 0 | - | 4.93 | 125,758 |
| Top 10 Wheat-Producing Countries | 0 | - | 4.89 | 75,018 |
| 15 Biggest Island Countries | 0 | - | 4.98 | 162,716 |
| Most Recently-Settled Countries | 0 | - | 4.94 | 62,382 |
| Countries of the World in 1938 Quiz | 0 | - | 4.95 | 93,982 |
| Countries Bigger Than Their Neighbors | 0 | - | 4.93 | 153,846 |
| Countries with Multiple Populous Islands | 0 | - | 4.89 | 95,490 |
| Countries in Relation to Cities #1 | 0 | - | 4.92 | 44,991 |
| Countries by Sports League Revenue | 0 | - | 4.94 | 76,988 |
| Landmarks of Countries #1 | 0 | - | 4.88 | 107,721 |
| Countries Furthest from the United States | 0 | - | 4.94 | 88,995 |
| Countries with the Highest HDI | 0 | - | 4.95 | 136,779 |
| Top 10 Biggest Economies in the Americas | 0 | - | 4.94 | 91,967 |
| Richest Countries A-Z | 0 | - | 4.91 | 102,780 |
| Large Countries with Small Economies | 0 | - | 4.95 | 80,778 |
| Smallest Countries with at Least One Border | 0 | - | 4.87 | 107,036 |
| Communist Countries in History | 0 | - | 4.63 | 495,002 |
| Southernmost Countries of the World | 0 | - | 4.99 | 227,513 |
| Countries by Inland Surface Water | 0 | - | 4.94 | 104,934 |
| Top 20 Motor Vehicle Producing Countries | 0 | - | 4.91 | 122,644 |
| Countries With the Most Languages | 0 | - | 4.90 | 201,337 |
| Countries with the Highest Population Under Age 15 | 0 | - | 4.95 | 110,519 |
| Countries with the Highest Population 65 and Older | 0 | - | 4.90 | 93,674 |
| Countries with the Most Prisoners | 0 | - | 4.94 | 98,833 |
| Countries with the Most Domestic Camels | 0 | - | 4.94 | 61,263 |
| Tallest Countries North to South | 0 | - | 4.83 | 120,288 |
| Widest Countries East to West | 0 | - | 4.92 | 129,379 |
| Countries with the Highest Average Elevation | 0 | - | 4.98 | 71,384 |
| Largest Countries by Area or Population | 0 | - | 5.00 | 185,968 |
| Countries with the Most Area in the Southern Hemisphere | 0 | - | 4.99 | 97,995 |
| Most Populous Countries as a Percent of Their Continent | 0 | - | 4.97 | 94,512 |
| Largest Countries as a Percent of Continent | 0 | - | 4.97 | 148,224 |
| Countries with the Most Desert | 0 | - | 4.93 | 127,555 |
| Countries by Contribution to UN Budget | 0 | - | 4.87 | 77,236 |
| Countries with Most Nobel Laureates per Capita | 0 | - | 4.83 | 34,728 |
| Countries with Double Letters | 0 | - | 4.97 | 95,101 |
| Countries that End in N | 0 | - | 4.95 | 170,005 |
| Countries with Five Letters | 0 | - | 4.96 | 280,271 |
| Countries with Six Letters | 0 | - | 4.94 | 212,492 |
| Countries with W | 0 | - | 4.97 | 159,523 |
| Countries with Z | 0 | - | 4.98 | 289,816 |
| Countries with Letters Missing | 0 | - | 4.96 | 185,755 |
| Countries That End in U | 0 | - | 4.95 | 120,416 |
| Top 20 Longest One-Word Country Names | 0 | - | 4.98 | 133,761 |
| Countries that End in O | 0 | - | 4.92 | 159,199 |
| Countries that End in R | 0 | - | 4.87 | 118,735 |
| Country Names Created by Only 4 Letters | 0 | - | 4.99 | 155,515 |
| Countries Ending in "IA" | 0 | - | 4.99 | 208,340 |
| Countries by First and Last Letter #1 | 0 | - | 4.97 | 170,113 |
| Countries by Last Two Letters | 0 | - | 4.85 | 135,089 |
| Countries by First and Last Letter #2 | 0 | - | 4.96 | 141,670 |
| Countries That End in Y | 0 | - | 4.90 | 185,650 |
| Countries Based on First Two Letters #1 | 0 | - | 4.99 | 197,232 |
| Countries with Cardinal Directions in Their Names | 0 | - | 4.92 | 152,430 |
| Countries that End in I | 0 | - | 4.94 | 134,873 |
| Countries Based on First Two Letters #2 | 0 | - | 4.99 | 183,088 |
| Countries by Initial Letter and Length #1 | 0 | - | 4.98 | 95,581 |
| Countries That End in NIA | 0 | - | 4.92 | 109,519 |
| Countries That End in BIA | 0 | - | 4.93 | 148,846 |
| Countries by Initial Letter and Continent #1 | 0 | - | 4.94 | 166,726 |
| Countries Whose Names Start with Saint | 0 | - | 4.87 | 119,065 |
| Countries That End in RIA | 0 | - | 4.93 | 126,542 |
| Most Common Words in Official Country Names | 0 | - | 4.86 | 110,637 |
| Divided Country Name Puzzle #1 | 0 | - | 4.99 | 226,718 |
